Calendar overview 1821
|Adams-Onís Treaty comes into force , Florida will go from Spain to the United States, which will renounce Texas .|
|Greek War of Independence begins with the oath in the monastery of Agia Lavra .||Fabian Gottlieb von Bellingshausen discovers Peter I Island .|
|1821 in other calendars|
|Armenian calendar||1269/70 (turn of the year July)|
|Ethiopian calendar||1813/14 (September 10-11)|
|Bengali solar calendar||1226/27 (beginning of April 14th or 15th)|
|Buddhist calendar||2364/65 (southern Buddhism); 2363/64 (alternative calculation according to Buddhas Parinirvana )|
|Chinese calendar||75th (76th) cycle|
|Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam)||1183/84 (turn of the year April)|
|Dangun era (Korea)||4154/55 (October 2/3)|
|Islamic calendar||1236/1237 (turn of the year 27/28 September)|
|Jewish calendar||5581/82 (September 26-27)|
|Coptic Calendar||1537/38 (September 10-11)|
|Seleucid era||Babylon: 2131/32 (turn of the year April)
Syria: 2132/33 (turn of the year October)
|Vikram Sambat (Nepalese Calendar)||1877/78 (April)|
Politics and world events
Ljubljana Congress / Kingdom of the Two Sicilies
- January 19: Great Britain's Foreign Minister declares in a telegram to Prussia, Austria, Russia and France that military interventions in countries threatened with overthrow are not in accordance with British political principles. Great Britain is thus against the Holy Alliance .
- January 26th: The Ljubljana Congress begins. Participants are Tsar Alexander I of Russia , Emperor Franz I of Austria and King Ferdinand I of both Sicilies. At the third congress of monarchs , the situation after the coup in the Kingdom of the Two Sicilies is the focus of political deliberations. After the solemn introduction of the new constitution for the Kingdom of the Two Sicilies, King Ferdinand I of Naples-Sicily asks for support for the suppression of the liberal movement. Austria then intervenes militarily in the conflict.
- March 7th: The Austrian army defeats Neapolitan troops under General Guglielmo Pepe near Rieti . The military intervention in the Kingdom of the Two Sicilies , tolerated by the major European powers, served to calm the situation after a military coup by the Carbonari the year before and to suppress republican efforts.
- April 8th: The Austrian troops beat the liberal rebels in Piedmont and restore the absolutist order. King Ferdinand I repealed the liberal constitution on May 15th.
- May 12th: The Ljubljana Congress ends with the decision to put down the liberal coup in the Kingdom of the Two Sicilies with a military intervention.
- March 23: In the Peloponnesian city of Kalamata , conquered by insurgents, the Greek Revolution is announced, which should lead to independence from the Ottoman Empire .
- March 25th: The Greek Revolution begins with the goal of a free and sovereign Greece . Allegedly, Matropolitan Germanos of Patras blesses the Greek flag .
- April 22nd: After the start of the Greek War of Independence , the Ecumenical Patriarch Gregorios V is hung from a church door in Constantinople on the orders of Sultan Mahmud II .
- October 5: Greek insurgents under Theodoros Kolokotronis conquer the previously besieged city of Tripoli in the Peloponnese during the Greek Revolution and massacre the Muslim population.
Other events in Europe
- July 19: George IV is crowned King of Britain in London . His coronation banquet at Westminster Hall is the last in the history of the British monarchy.
- March 13: King Victor Emanuel I abdicates in the Kingdom of Sardinia , but remains Duke of Savoy . His brother Karl-Felix succeeds him on the throne.
- Liberal revolution in Portugal : a constituent assembly is elected, the country's first constitution is passed, King John VI. returns to Portugal from Brazil .
- June 13: Egyptian troops conquer the capital Sannar in the Sultanate of Sannar as they advance into neighboring territory . The Egyptians immediately made their military camp Khartoum the new capital. The 300 year old realm of the Fung ceases to exist.
- February 22nd: After ratification by both sides, the Adams-Onís Treaty between Spain and the United States is promulgated.
- April 10: Springfield , later the capital of the US state Illinois and hometown of Abraham Lincoln , is founded under the name Calhoun .
- July 10: The previous Spanish colony of Florida , consisting of East and West Florida , is transferred to US administration when the Adams-Onís Treaty entered into force in 1819 . The United States, waive all claims on the Viceroyalty of New Spain belonging Texas .
- August 10th: Missouri becomes the 24th state in the United States as a result of the Missouri Compromise .
- February 24: In the Mexican War of Independence , Agustín de Iturbide and Vicente Guerrero announce the Iguala plan , in which the idea of an independent, Catholic and united Mexico is formulated. Mexico is still part of New Spain at this point in time .
- June 24: In Venezuela's War of Independence , the separatists under Simón Bolívar win the decisive battle of Carabobo over the Spanish troops under Miguel de la Torre . With this, Venezuela finally freed itself from the colonial rule of Spain.
- July 28: José de San Martín proclaims Peru's independence from Spain at the Lima Congress.
- August 24th: The Mexican general Agustín de Itúrbide and the viceroy Juan O'Donojú , who acted without a Spanish mandate , sign the Treaty of Cordoba . It forms the basis for Mexico's independence and provides for a constitutional monarchy there.
- September 15: Guatemala , El Salvador , Costa Rica and Honduras gain independence from Spain and declare the General Capitanate of Guatemala to be part of Mexico until it split off from Mexico as the Central American Confederation in 1823 .
- November 28th: Panama declares itself independent from Spain and joins Greater Colombia .
- December 1st: Costa Rica receives a provisional constitution, the Pacto de Concordia .
- January 10: Fabian Gottlieb von Bellingshausen discovers Peter I Island in the Southern Ocean as part of the first Russian southern polar expedition . However, due to the weather, he cannot enter the island.
- January 28th: The Alexander -I. -The island is discovered by Fabian Gottlieb von Bellingshausen; he names the island after his client Tsar Alexander I , but mistakenly considers it to be part of the Antarctic mainland and therefore calls it Alexander I Land , a name that lasted until 1940.
- February 7: The American seal hunter John Davis claims to be the first person to set foot on Antarctic soil.
- May 1st: The Bank of England exchanges its notes for gold again; End of the bank restriction (since 1797).
- May 5: The British daily newspaper The Manchester Guardian is founded in Manchester .
- June 23: In Dresden, the Elbe shipping act is signed by the Elbe bordering states . Until this comes into force on March 1, 1822, the customs stations on the Elbe will be reduced from 35 to 14.
- August 4th: The weekly newspaper The Saturday Evening Post appears for the first time in the USA .
science and technology
- February 1: In Trogen , the teaching and education institute founded by Johann Caspar Zellweger for the sons of the educated classes, today's Trogen Cantonal School , opens. This makes it one of the oldest educational institutions in the canton and the second oldest non-church secondary school in Switzerland.
- April 19: After approval by the House of Commons (April 12) and the House of Lords (April 17), King George IV gives his formal approval to build a new transport route in North East England, which will eventually lead to the construction of the steam-powered Stockton and Darlington Railway runs. While the applicant Edward Pease is waiting at home in Darlington for the decisive news from London, engineers Nicholas Wood and George Stephenson call on him .
- August 12: The Universidad de Buenos Aires is founded as the first university in Argentina .
- Thomas Johann Seebeck discovers the Seebeck effect on thermoelectricity and builds the first thermocouple .
- Sequoyah introduces the Cherokee syllabary he developed for the Cherokee tribal leadership.
- October 31: The Luther monument in Wittenberg , a work by Johann Gottfried Schadow and Karl Friedrich Schinkel , is unveiled.
Music and theater
→ Main article : Music year 1821
- January 28th: The world premiere of the opera Esop in Lydien by Conradin Kreutzer takes place in Donaueschingen .
- June 18: The romantic opera Der Freischütz by Carl Maria von Weber based on the libretto by Johann Friedrich Kind is premiered with triumphant success at the Königliches Schauspielhaus Berlin .
- August 13: The opera Adele von Budoy by Conradin Kreutzer is premiered in Königsberg with Anna Milder in the title role.
- October 30: The world premiere of the opera Elisa e Claudio by Saverio Mercadante takes place at the Teatro alla Scala di Milano in Milan.
- November 27: The world premiere of the opera Léonore et Félix by François Benoist takes place at the Théâtre Feydeau in Paris.
- July 16: With the bull De salute animarum , Pope Pius VII establishes the reorganization of the dioceses and church provinces in Prussia .
- August 16: In the Bull Provida solersque , Pope Pius VII regulates the ecclesiastical territorial order in southwest Germany. The Archdiocese of Freiburg comes into being with the suffragan dioceses of Mainz , Fulda , Rottenburg and Limburg . The diocese of Constance , which has been headed by Ignaz von Wessenberg since 1817 without papal recognition, is abolished.
- Jakob Bruderer , Swiss entrepreneur and politician († 1884) January 1:
- James Croll , Scottish autodidact († 1890) January 2:
- Cornelius S. Hamilton , American politician († 1867) January 2:
- Cesare Bonelli , Italian Minister of War († 1904) January 3:
- Joseph D. Bedle , American politician († 1894) January 5:
- James Longstreet , American General of the Confederation († 1904) January 8:
- Johann Anton Breil , German organ builder († 1892) January 9th:
- Adolf Dillens , Belgian painter († 1877) January 9:
- January 12: Nikolai Jakowlewitsch Afanassjew , Russian violin virtuoso and composer († 1898)
- January 14: Salomon Hermann Mosenthal , German playwright and librettist († 1877)
- January 16: John Cabell Breckinridge , American general and statesman († 1875)
- January 19: Ferdinand Gregorovius , German writer and historian († 1891)
- January 24th: Blasius Kozenn , Austrian cartographer († 1871)
- January 27: John M. Chivington , American officer († 1894)
- January 29: Robert Spiske , founder of the religious order of the Hedwig Sisters († 1888)
- January 30: Franz von Sonnenfeld , Swiss writer († 1888)
- Wilhelm Ihne , German classical philologist and ancient historian († 1902) February 2:
- Elizabeth Blackwell , English doctor († 1910) February 3:
- Aaron H. Cragin , American politician († 1898) February 3:
- Hermann von Mallinckrodt , German politician († 1874) February 5:
- February 11: Hermann Allmers , North German local poet († 1902)
- February 11: Auguste Mariette , French Egyptologist († 1881)
- February 15: Camille Rousset , French historian († 1892)
- February 16: Heinrich Barth , German Africa explorer († 1865)
- February 17th: Lola Montez , Irish impostor and dancer († 1861)
- February 19: Francis Preston Blair , American politician († 1875)
- February 19: August Schleicher , German linguist († 1868)
- February 20: Nils Johan Andersson , Swedish botanist († 1880)
- February 21: Rachel Felix , French actress († 1858)
- February 22nd: Ludmilla Assing , German writer († 1880)
- February 22nd: Daniel Harrwitz , German chess master († 1884)
- February 23: Amos Tappan Akerman , American lawyer and politician († 1880)
- February 24: Franz Josef Denzinger , German architect († 1894)
- Joseph Hubert Reinkens , first bishop of the Old Catholic Church in Germany († 1896) March 1:
- Axel Gustaf Adlercreutz , Swedish statesman († 1880) March 2:
- Otto Delitsch , German geographer († 1882) March 5:
- March 11: Johann Georg Gerhard Schmitt , German composer and organist († 1900)
- March 12: John Abbott , Canadian lawyer, politician and Prime Minister († 1893)
- March 12: Hermann Hettner , German literary and art historian († 1882)
- March 12: Luitpold of Bavaria , Bavarian Prince Regent († 1912)
- March 13: Hermann Gruson , inventor, scientist and entrepreneur († 1895)
- March 13: Leopold Kaufmann , Lord Mayor of Bonn from 1851 to 1874 († 1898)
- March 15: Johann Josef Loschmidt , Austrian physicist and chemist († 1895)
- March 15: Franz Mair , Austrian choir master, composer and founder of the Wiener Schubertbund († 1893)
- March 15: Rudolph Reichmann , German-American newspaper publisher († 1908)
- March 18: Eduard Heine , German mathematician († 1881)
- March 19: Richard Francis Burton , British consul, researcher, translator, and orientalist († 1890)
- March 24th: Mathilde Marchesi , German opera singer (mezzo-soprano) and music teacher († 1913)
- March 28: William Howard Russell , Irish journalist († 1907)
- March 29: Karl Knies , German economist († 1898)
- Louis-Adolphe Bertillon , French physician, anthropologist, statistician and demographer († 1883) April 1:
- Louis Lewandowski , German composer († 1894) April 3:
- Heinrich Band , inventor of the bandoneon († 1860) April 4:
- Linus Yale , American inventor (cylinder lock) († 1868) April 4:
- Charles Baudelaire , French modernist poet († 1867) April 9:
- April 12: Samuel G. Arnold , American politician († 1880)
- April 12: Adonijah Welch , American politician († 1889)
- April 15: Joseph E. Brown , American politician († 1894)
- April 16: Ford Madox Brown , British painter († 1893)
- April 21: Michael Rostock , Sorbian botanist and entomologist († 1893)
- April 26: Robert Adamson , Scottish chemist and photographer († 1848)
- April 27: Henry Willis , English organ builder († 1901)
- Daniel Weisiger Adams , American lawyer and brigadier general († 1872) May 1:
- Henry Ayers , Prime Minister of South Australia († 1897) May 1:
- Jean Louis Hamon , French painter († 1874) May 5:
- Ludwig Adolf Neugebauer , Polish gynecologist († 1890) May 6:
- May 12: Bernhard Kothe , German composer, church musician, music historian and teacher († 1897)
- May 15: Félix Joseph Henri de Lacaze-Duthiers , French physiologist and zoologist († 1901)
- May 15: Ludwig Knoop , entrepreneur († 1894)
- May 16: Pafnuti Lwowitsch Tschebyschow , Russian mathematician († 1894)
- May 17: Sebastian Kneipp , Bavarian priest and hydrotherapist († 1897)
- May 17: August Nagel , Saxon professor of geodesy († 1903)
- May 22: Christian Friele , Norwegian editor († 1899)
- May 24: Topete y Carballo , Spanish admiral and politician († 1885)
- May 25: Henri Alexis Brialmont , Belgian general and military writer († 1903)
- May 25: Wilhelm Rustow , German freedom fighter and revolutionary, military writer and historian († 1878)
- May 25: Heinrich Matthias Sengelmann , pastor and founder of the Alsterdorfer Anstalten († 1899)
- May 26: Amalie Dietrich , German botanist and zoologist († 1891)
- Samuel White Baker , British African explorer († 1893) June 8:
- June 10: Alexander von Frantzius , German physician, zoologist and anthropologist († 1877)
- June 12: Louis Baare , German economic pioneer († 1897)
- June 12: Luise Büchner , women's rights activist and author († 1877)
- June 13: Albert de Broglie , French historian, publicist and statesman († 1901)
- June 19: Heinrich August Hahn , German Protestant theologian and university professor († 1861)
- June 25: Bartolomé Miter , statesman, military leader and historian († 1906)
- June 27th: August Conradi , German composer, organist and Kapellmeister († 1873)
- June 28: Max Maretzek , American opera director, conductor and composer († 1897)
- Charles Tupper , Canadian politician and Prime Minister († 1915) July 2:
- Ferdinand Kürnberger , Austrian writer († 1879) July 3:
- Edmund Pettus , American politician († 1907) July 6:
- July 10: Karl Culmann , civil engineer and professor in Zurich († 1881)
- July 12: Daniel Harvey Hill , American general († 1889)
- July 13: Nathan Bedford Forrest , American general († 1877)
- July 15: Heinrich Wankel , Bohemian doctor, prehistorian and speleologist († 1897)
- July 16: Mary Baker Eddy , American author and religious founder († 1910)
- July 17: Friedrich Engelhorn , German entrepreneur († 1902)
- July 18: Bernhard Höting , Bishop of Osnabrück († 1898)
- July 18: Pauline Viardot-Garcia , French artist († 1910)
- July 20: James McNair Baker , American lawyer and politician († 1892)
- July 21: Adolf Carl Daniel von Auersperg , Austrian-Hungarian Prime Minister († 1885)
- Louis Vuitton , French entrepreneur († 1892) August 4th:
- James Springer White , co-founder of the Seventh-day Adventists († 1881) August 4:
- Wilhelm Albrecht Prince of Montenuovo , old Austrian general († 1895) August 8:
- August 10: Aloys Anderle , Bohemian tenor and opera singer († 1864)
- August 16: Arthur Cayley , English mathematician († 1895)
- August 21: Wilhelm Heinrich Schüßler , German founder of homeopathic therapy († 1898)
- August 21: William Barksdale , Brigadier General of the Confederate States of America in the Civil War († 1863)
- August 22nd: Edouard Plouvier , French playwright and librettist († 1876)
- August 25: Ludwig Pfau , German writer, journalist and revolutionary († 1894)
- August 26: William Alexander Adams , English engineer and entrepreneur († 1896)
- August 27: Alwin Wieck , German violinist and piano teacher († 1885)
- August 31: Christian Carl Magnussen , German painter († 1896)
- August 31: Hermann von Helmholtz , German physiologist and physicist († 1894)
- Viktor von Meibom , German legal scholar († 1892) September 1:
- Ernst Pasqué , German opera singer and author († 1892) September 3:
- Wilhelm Schwartz , German educator and writer († 1899) September 4:
- Alvin Peterson Hovey , American politician († 1891) September 6:
- Josef Eisenkolb , Romanian-German composer († 1899) September 8:
- September 12: Johann Traugott Mutschink , Sorbian folk writer and local historian († 1904)
- September 13: Carl Nipperdey , German classical philologist († 1875)
- September 17: Philipp Arons , German genre and portrait painter († 1902)
- September 17: Léonard-Léopold Forgemol de Bostquénard , French general († 1897)
- September 18: John Cougnard , Swiss Protestant clergyman and university professor († 1896)
- September 18: Robert E. Withers , American politician († 1907)
- September 20: Cornelis Willem Opzoomer , Dutch lawyer, philosopher, literary scholar and logician († 1892)
- September 22: John Conness , American politician († 1909)
- September 24: Cyprian Norwid , Polish poet († 1883)
- September 27: Henri-Frédéric Amiel , Swiss writer and philosopher († 1881)
- September 27: Carl Adolf Riebeck , industrialist and mining entrepreneur († 1883)
- September 27: Johann Joachim Schlegel , founder of Schlegel Brauerei AG in Bochum († 1880)
- September 30th: Cenobio Paniagua , Mexican composer († 1882)
- Benjamin T. Biggs , American politician († 1893) October 1:
- Nino Bixio , Italian freedom fighter († 1873) October 2:
- Rudolf Haym , German philosopher and literary historian († 1901) October 5:
- Ludwig Turban the Elder , Minister of State in Baden († 1898) October 5:
- Richard Heron Anderson , American general († 1879) October 7:
- Friedrich Kiel , German composer of the late Romantic period († 1885) October 8:
- William Alfred Passavant , American clergyman († 1894) October 9:
- Hermann Knothe , regional historian of Upper Lusatia († 1903) October 9:
- October 11: James Phelan , American politician († 1873)
- October 11: George Williams , founder of the Christian Young People's Association († 1905)
- October 13: Oscar Byström , Swedish composer († 1909)
- October 13: Rudolf Virchow , German doctor, pathologist and politician († 1902)
- October 14: Ernst Wilhelm Ackermann , German theologian and poet († 1846)
- October 15: Moritz Hartmann , journalist, writer and politician († 1872)
- October 16: Johann Friedrich Dändliker , Swiss Pietist and Diakonie Head († 1900)
- October 16: Franz Doppler , Austro-Hungarian composer († 1883)
- October 19: Charles Jean Jacques Joseph Ardant du Picq , French colonel († 1870)
- October 22: Collis P. Huntington , railroad builder († 1900)
- October 23: Max von Forckenbeck , German lawyer and Mayor of Berlin († 1892)
- October 24: Ludwig Seidel , German mathematician and astronomer († 1896)
- October 25: Antonio Ciseri , Italian painter of Swiss origin († 1891)
- October 27: Alexis de Garaudé , French composer († 1854)
- October 31: Karel Havlíček Borovský , Czech poet, literary critic, translator, politician and journalist († 1856)
- Philipp Toussaint Joseph Bordone , French general († 1892) November 1:
- William Adams Richardson , American politician († 1896) November 2:
- November 11th: Fyodor Dostoyevsky , Russian writer († 1881)
- November 13: Wilhelm Hillebrand , German doctor and botanist († 1886)
- November 18: Franz Friedrich Ernst Brünnow , German astronomer († 1891)
- November 21: Charles Hoguet , German painter († 1870)
- November 24th: Henry Thomas Buckle , English historian and chess player († 1862)
- November 28: Henri Baudrillart , French economist († 1892)
- Rufus Barringer , lawyer, politician and Brigadier General of the Confederates in the American Civil War († 1895) December 2:
- Alvin Hawkins , American politician († 1905) December 2:
- Johan Gabriel Anrep , Swedish genealogist († 1907) December 4:
- Ernst Wilhelm Leberecht Tempel , German astronomer and lithographer († 1889) December 4:
- Siegmund von Pranckh , Bavarian infantry general († 1888) December 5:
- Friedrich Schlögl , Austrian writer († 1892) December 7th:
- December 12: Gustave Flaubert , French writer († 1880)
- December 12: Sigmund Lebert , German music teacher († 1884)
- December 17: Alexander Ferdinand Ludwig Andrae , German farmer and politician († 1903)
- December 17: Josef Krejčí , Czech composer († 1881)
- December 17: Robert Whitaker McAll , British Congrealist pastor, evangelist, social reformer and founder of the Mission populaire évangélique († 1893)
- December 22nd: Giovanni Bottesini , Italian composer and double bass player († 1889)
- December 23: Johann Jakob Sulzer , Swiss politician († 1897)
- December 24: Gabriel García Moreno , Ecuadorian lawyer and President († 1875)
- December 25: Clara Barton , American philanthropist († 1912)
- December 28: Charles R. Buckalew , American politician († 1899)
- December 31: Philipp M. Schmutzer , Austrian musician and composer († 1898)
Exact date of birth unknown
- Luigia Abbadia , Italian opera singer († 1896)
- May: William Kelly Northern Irish classical speaker, Bible interpreter, author and preacher of the Brethren Movement († 1906)
January to April
- Elisabeth Anna Bayley Seton , founder of the "Sisters of Charity" order, American saint (* 1774) January 4th:
- Antoni Stolpe , Polish composer, pianist, conductor and music teacher January 5th:
- Karl Friedrich Wilhelm Herrosee , German hymn poet (* 1754) January 8:
- January 14: Jens Zetlitz , Norwegian poet (* 1761)
- January 15: Cornelis Willem de Rhoer , Dutch historian, rhetorician, philologist and legal scholar (* 1751)
- January 18: Christian zu Stolberg-Stolberg , German chamberlain, translator and poet (* 1748)
- January 25: Maciej Kamieński , Polish composer (* 1734)
- January 30th: Vincenz Darnaut , Austrian clergyman and topographer (* 1770)
- February 23: John Keats , British romantic poet (* 1795)
- February 24th: Marie-Anne Collot , French sculptor (* 1748)
- February 26: Gottlob Heinrich Schulz , German lawyer and mayor (* 1764)
- February 27: Wilhelm I of Hessen-Kassel , German Elector (* 1743)
- Gian Alfonso Oldelli , Swiss Capuchin, university professor and local researcher (* 1733) March 5:
- Christian Adolph Overbeck , Mayor of Lübeck and poet (* 1755) March 9:
- March 14: Heinrich Rathmann , educator, historian and Protestant pastor (* 1750)
- March 14: Ernst von Schwarzenberg , bishop, composer and canon in Cologne (* 1773)
- March 26: Josef Ignác Buček , Czech university professor, author of economic works (* 1741)
- Simone Assemani , Italian orientalist (* 1752) April 7th:
- April 11th: Georg Joseph Beer , Viennese doctor, founder of scientifically based ophthalmology (* 1763)
- April 15: Johann Christoph Schwab , German philosopher (* 1743)
- April 17th: Johann Gottfried am Ende , Protestant theologian (* 1752)
- April 20: Franz Carl Achard , German physicist and chemist (* 1753)
- April 23: Pierre Riel de Beurnonville , French general and statesman, peer and marshal of France (* 1752)
- April 24th: Johann Peter Frank , German medic (* 1745)
- April 25: Carl Ahasver von Sinner , Swiss architect (* 1754)
- April 29: André-Frédéric Eler , French composer and music teacher (* 1764)
- April 29th: Kaspar Cherasian , Armenian politician
May to August
- Benjamin Howland , American politician (* 1755) May 1:
- Napoleon Bonaparte , French general, first consul of France, revolutionary dictator and emperor of the French, also co-prince of Andorra, president and king of Italy and protector of the Confederation of the Rhine (* 1769) May 5th:
- May 19: Henri de Franquetot, duc de Coigny , French courtier and general (* 1737)
- May 26: Constance Mayer , French painter (* 1775)
- Joas II , Emperor of Ethiopia June 3:
- Louis Claude Marie Richard , French botanist (* 1754) June 7th:
- Tudor Vladimirescu , leader of the Wallachian uprising of 1821 (* around 1780) June 8:
- June 17th: Martín Miguel de Güemes , Argentine general of the War of Independence (* 1785)
- June 19: Peter Ochs , Swiss politician (* 1752)
- June 20: Gustav Kalixt von Biron , lieutenant general in the coalition wars (* 1780)
- June 30th: Don José Fernando Abascál y Sousa , Marques de la Concordia and Spanish viceroy in Peru (* 1743)
- Michele Di Pietro , Italian cardinal (* 1747) July 2:
- July 16: Augustin Braig , German Roman Catholic theologian and university professor (* 1766)
- July 17th: Fulgencio Yegros , first President of Paraguay (* 1780)
- July 20: Maurice-Jean-Magdalène de Broglie , French bishop (* 1766)
- July 24th: Johann Timotheus Hermes , German poet and novelist (* 1738)
- Caroline von Braunschweig-Wolfenbüttel , Queen of Great Britain, Ireland and Hanover (* 1768) August 7th:
- August 14th: John Clark , American politician (* 1761)
- August 19: Marie-Denise Villers , French classicist painter (* 1774)
- August 20: Dorothea of Courland , Duchess of Courland (* 1761)
- August 30th: Louis Michel Aury , French pirate (* 1788)
- August 30: John Francis Mercer , American politician (* 1759)
- August 31: Pierre Galin , French music theorist (* 1786)
September to December
- José Miguel Carrera , Chilean politician and President (* 1785) September 4:
- September 10: Johann Dominik Fiorillo , German painter and art historian (* 1748)
- September 13th: Anton Will , German medic (* 1752)
- September 14: Heinrich Kuhl , German zoologist (* 1797)
- September 18: Jean-Nicolas Corvisart , French personal physician to Napoleon Bonaparte (* 1755)
- September 21: Joseph Bradley Varnum , American politician (* 1751)
- Thomas W. Thompson , American politician (* 1766) October 1:
- John Rennie , Scottish civil engineer (* 1761) October 4th:
- Juan O'Donojú , Spanish lieutenant general and viceroy of New Spain (* 1762) October 8:
- Georg Friedrich Fuchs , German composer and conductor (* 1752) October 9:
- October 20: Félix de Azara , Spanish officer, naturalist and surveyor (* 1746)
- October 28: Gaspare Pacchierotti , Italian opera singer and castrato (* 1740)
- Francesc Antoni de la Dueña y Cisneros , Bishop of Urgell and Co-Prince of Andorra (* 1753) November 8:
- Jean Rapp , French count, lieutenant general and adjutant to Napoleon (* 1771) November 8th:
- November 10: Andreas Romberg , German violinist and composer (* 1767)
- November 18: Johann Kaspar Gensler , German legal scholar (* 1767)
- November 21: Jonas Rein , Norwegian poet (* 1760)
- November 28: Christen Pram , Norwegian author (* 1756)
- November 28: Hieronymus Waldinger , Austrian veterinarian and university lecturer (* 1755)
- Emmanouil Papas , Greek commander in the struggle for independence (* 1773) December 5th:
- December 13: William A. Trimble , American officer and politician (* 1786)
Exact date of death unknown
- Ramon Amadeu i Grau , Spanish sculptor (* 1745)
- Michael Andreaš , Slovenian poet (* 1762)
- Manuel Antonio Arredondo y Pelegrín , Spanish lawyer, colonial administrator and viceroy of Peru (* before 1750)
- Charles Bochsa , French composer, oboist, publisher and music dealer